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# Operation Costs

Calculation of fee cares of block network bandwidth volume. 

Simple Transfer Operation,PSce execution cost described below formula;

<figure><img src="/files/zVCtk80ptghw88zBfGjk" alt="" width="270"><figcaption></figcaption></figure>

**x:** Transaction count of last approvement block.

**Execution Memory Allocation Protocol:**

In addition execution of PSce fee has a new const , that is **externally heap memory usage. It depends on your code allocation of memory at run time.**